计算(+1)+(-2)+(+3)+(-4)+······+(-100)+(+101)+(-102)
计算(+1)+(-2)+(+3)+(-4)+······+(-100)+(+101)+(-102)
计算:(1-2)*(2-3)*(3-4)*······*(100-101)
怎样计算1×2+2×3+3×4+······+100×101
C语言计算1+2+3+···+100
计算:(详细步骤和计算依据)谢谢 (1-1/2²)·(1-1/3²)·(1-1/4²)··
计算此题(-1)+2+(-3)+4+···+100+(-101)
计算1+(-2)+3+(-4)+5+(-6)+····+(+2013)+(-2014)
计算 1-2+3-4+5-6+····+(-1)^n+1*n
计算:-1+2+(-3)+4+(-5)+······+(-99)+100等于多少?
计算:1+(-2)+3+(-4)+···+2005+(-2006)+2007+(-2008).
计算:(2+4+6+8+···+100)-(1+3+5+···+99)
计算(1)(xy)^3·3x^2·(-4x^2y^3)^2